what do you mean by beads? the net in the seat? but has anyone on the forum tried to eliminate only the two side fans including the rigid support for their support in the foam. and plug the holes successfully?

The gray Stripes/Beads (Keder in german)
These are pretty annoying as well.
The net in the seats make it a bit harder, but this is not what is pushing you in the butt as you would sit on something
As I understood Kelle, he did try to remove just the fans on the side without success and did finally exchange the cushion/foam
The seat ventillation is pretty weak anyways.
Removing the fans in the bottom is no big loss and the additional comfort is a lot more worth than having some "warm air" around your booty.
That is at least my opinion